| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 169017000 | Dry pipe | 37 |
| 20080257564 | EXTENDED COVERAGE ORDINARY HAZARD HORIZONTAL DRY TYPE SPRINKLER AND SYSTEM - A dry sidewall sprinkler and system and methods of installation provide extended coverage for ordinary hazard commodities. The preferred sprinkler and systems provide for sidewall ordinary hazard fire protection beneath a sloped or horizontal overhang extending from a structure by at least ten feet proximate to a garage or loading dock in accordance with applicable sections of NFPA-13 (2007). | 10-23-2008 |
| 20090050337 | SELECTABLE MODE TEST AND DRAIN MODULE - A module for testing and draining fire protection sprinkler systems is disclosed. The module has a chamber with an inlet duct in fluid communication with the sprinkler system and an outlet duct. A valve controls fluid flow through the chamber. A plate, having an orifice, is mounted within the chamber and is pivotable to a first or test position wherein the orifice is aligned with the outlet. Flow of water through the chamber is restricted by the orifice to simulate flow through a single open sprinkler head. The plate is pivotable to a second or drain position out of alignment with the outlet, allowing unrestricted flow. The module may include a pipe segment on which the module is mounted, the segment being integrated with a riser of the sprinkler system. | 02-26-2009 |
| 20090272549 | Dry Valve For Sprinkler System - A dry valve is provided for a sprinkler system, including a housing including a valve body having an inlet end and a valve cover having an outlet end. A prime chamber housing is disposed within the housing and defines a prime chamber. A prime piston is disposed within the prime chamber and is movable between a closed position seated against a valve seat and an open position received within the prime chamber. A check valve diaphragm assembly is disposed within the housing and disposed against the prime chamber housing in a closed position and spaced from the prime chamber housing in an open position. | 11-05-2009 |
| 20090288846 | DRY SPRINKLER SYSTEM AND DESIGN METHODS - A dry fire protection system, preferably for a storage occupancy, and its method of design are provided in which a fluid delivery delay period is identified and implemented. The preferred design method includes defining a ceiling height, a storage configuration, and storage height. The hydraulic demand for a wet system protecting the same defined storage occupancy is then identified. A fluid delivery delay period is then determined for the dry sprinkler system, preferably a maximum ADT, which results in a sprinkler operational area having a total number of sprinkler activations less than or equal to that defining the total hydraulic demand of the wet system. The preferred dry system can be further configured such that each and every sprinkler in the system has a fluid delivery delay period equal to or less than the maximum fluid delivery delay period. | 11-26-2009 |
| 20090294138 | Dry Sprinkler Assembly - A dry pipe sprinkler assembly is provided including a sprinkler body having a thermally responsive trigger mounted thereto. A housing, including an inlet end and an outlet end is provided with the outlet end being connected to the sprinkler body. A seal member is disposed at the inlet end of the housing, and a load mechanism extends between the thermally responsive element and the seal member. The load mechanism may include a support portion, a passage tube portion, and an outlet orifice portion slidably received within the housing and movable within the housing upon activation of the thermally responsive trigger to allow the seal member to be dislodged from the inlet end of the housing to allow suppressant fluid to flow therethrough. The dry pipe sprinkler assembly allows the use of different outlet orifice members to provide dry pipe sprinkler assemblies having different K factors while utilizing common components for the remaining dry pipe sprinkler assembly. | 12-03-2009 |
| 20090301737 | CEILING-ONLY DRY SPRINKLER SYSTEMS AND METHODS FOR ADDRESSING A STORAGE OCCUPANCY FIRE - A ceiling-only dry sprinkler system configured to address a storage occupancy fire event with a sprinkler operational area sufficient in size to surround and drown fire. The system and method preferably provide for the surround and effect by activating one or more initial sprinklers, delaying fluid flow to the initial activated sprinklers for a defined delay period to permit the thermal activation of a subsequent-one or more sprinklers so as. to form the preferred sprinkler Operational area. The sprinklers of the operational area are preferably: configured so as to provider sufficient fluid volume and cooling to address the fire event with a surround and drown configuration, the defined delay period is of a defined period having a maximum and a minimum. The preferred sprinkler system is adapted for fire protection of storage commodities and provides a ceiling only system that eliminates or otherwise minimizes the economic disadvantage and design penalties current dry sprinkler system design. | 12-10-2009 |
| 20100065287 | FIRE PROTECTION SYSTEMS HAVING REDUCED CORROSION - A fire protection system comprising at least one sprinkler, a source of pressurized water, a piping network connecting at least one sprinkler to the source of pressurized water, and a nitrogen generator coupled to the sprinkler system. The nitrogen generator may be a nitrogen membrane system or a nitrogen pressure swing adsorption system. The present systems and methods reduce or nearly eliminate corrosion that typically affects conventional fire protection systems, such as caused by oxygen and microbial systems, which can deteriorate or compromise function. Initial, repeated, or continuous displacement of oxygen with nitrogen in the fire protection system significantly reduces or eliminates corrosion. | 03-18-2010 |
| 20100155087 | CEILING-ONLY DRY SPRINKLER SYSTEMS AND METHODS FOR ADDRESSING A STORAGE OCCUPANCY FIRE - A ceiling-only dry sprinkler system configured to address a storage occupancy fire event with a sprinkler operational area sufficient in size to surround and drown the fire. The system and method preferably provide for the surround and effect by activating one or more initial sprinklers, delaying fluid flow to the initial activated sprinklers for a defined delay period to permit the thermal activation of a subsequent one or more sprinklers so as to form the preferred sprinkler operational area. The sprinklers of the operational area are preferably configured so as to provide sufficient fluid volume and cooling to address the fire-event with a surround and drown configuration. The defined delay period is of a defined period having a maximum and a minimum. The preferred sprinkler system is adapted for fire protection of storage commodities and provides a ceiling only system that eliminates or otherwise minimizes the economic disadvantages and design penalties of current dry sprinkler system design. | 06-24-2010 |
| 20100181082 | System For Improving Water Delivery Time In Dry Pipe Sprinkler System - A dry sprinkler system, includes a fire extinguishing fluid supply line connected to a pressurized fire extinguishing fluid source. A plurality of fire protection sprinklers are connected to the fire extinguishing fluid supply line, each of the plurality of fire protection sprinklers including a sprinkler body having a stepped orifice. A control system is operably connected to the pressurized fire extinguishing fluid source and the fire extinguishing fluid supply line. The control system is configured to maintain the fire extinguishing fluid supply line dry during a non-activated condition and to forward a fire extinguishing fluid to the fire extinguishing fluid supply line from the pressurized fire extinguishing fluid source upon activation of one of the plurality of fire protection sprinklers. The use of stepped orifice sprinklers allows for a quicker discharge of air from the fluid supply line as compared to typical tapered orifice sprinklers, thereby providing improved water delivery time. | 07-22-2010 |
| 20100263882 | SYSTEM AND METHOD FOR FIRE PROTECTION SYSTEM CORROSION MITIGATION - An inert gas Fire Protection System (FPS) uses an inert gas rather than air in a dry or pre-action type FPS. The inert gas inhibits oxidation, galvanic corrosion, and/or bacterial growth, and hence mitigates Microbiologically Influenced Corrosion (MIC) and galvanic corrosion in the FPS piping. A zone purging valve, which may include a gas purity analyzer, is disposed at the end of each zone in the FPS. A controller over-pressurizes the FPS with inert gas, and bleeds the gas through the zone purging valves to a predetermined supervisory pressure. The pressurize/purge cycle is repeated to ensure inert gas of a predetermined purity level reaches all areas within the FPS. The purity of the inert gas is periodically measured in bleed operations. The inert gas may comprise Nitrogen, which additionally dries out residual water in the FPS due to a low dew point, further inhibiting MIC. | 10-21-2010 |
| 20110000685 | DRY-TYPE VACUUM SPRINKLER SYSTEM - A dry-type vacuum sprinkler system is provided, from which water remaining in a secondary pipe system can be easily removed and shortcomings typically seen in a dry-type sprinkler system are dissolved. The dry-type vacuum sprinkler system of the invention is secured from a quick fire extinguishment operation at the time of a fire. The sprinkler system of the invention includes a negative pressure state maintenance member for maintaining air charged in the secondary pipe system in a negative pressure state. The negative pressure state is defined as a normal state in the invention. The negative pressure state maintenance member includes a suction pipe | 01-06-2011 |
| 20110094758 | CONTROLLED DISCHARGE GAS VENT - A fire protection system includes a dry pipe system and a controlled discharge gas vent. The dry pipe system and controlled discharge gas vent operate using a breathing cycle to displace oxygen and/or water vapor from within the piping network of the dry pipe system. The controlled gas discharge vent allows displacement of pressurized air with nitrogen, for example, using manual or automated processes that can employ one or more sensors. Corrosion resulting from oxygen, water, and/or microbial growth is reduced or nearly eliminated. | 04-28-2011 |
| 20110147016 | Fluid Selective Check Valve - A valve has a valve body that defines a chamber. The chamber has an inlet and an outlet through which a flow path passes. A seat is positioned within the chamber and surrounds the flow path. A closing member is positioned within the chamber and a biasing member biases the closing member into an open position away from the seat. The biasing member exerts a biasing force on the closing member which exceeds the force exerted on the closing member by a first fluid which enters the inlet and flows past the closing member and through the open valve. The biasing force is less than the force exerted by a second fluid having one or more different characteristics from the first fluid. Force exerted by the second fluid on the closing member overcomes the biasing force and moves the closing member into engagement with the seat, closing the valve. | 06-23-2011 |
| 20110174508 | CEILING-ONLY DRY SPRINKLER SYSTEMS AND METHODS FOR ADDRESSING A STORAGE OCCUPANCY FIRE - A ceiling-only dry sprinkler system configured to address a storage occupancy fire event with a sprinkler operational area sufficient in size to surround and drown the fire. The system and method preferably provide for the surround and effect by activating one or more initial sprinklers, delaying fluid flow to the initial activated sprinklers for a defined delay period to permit the thermal activation of a subsequent one or more sprinklers so as to form the preferred sprinkler operational area. The sprinklers of the operational area are preferably configured so as to provide sufficient fluid volume and cooling to address the fire-event with a surround and drown configuration. The defined delay period is of a defined period having a maximum and a minimum. The preferred sprinkler system is adapted for fire protection of storage commodities and provides a ceiling only system that eliminates or otherwise minimizes the economic disadvantages and design penalties of current dry sprinkler system design. | 07-21-2011 |
| 20110253395 | Non-Differential Dry Pipe Valve and Fire Suppression System and Method Thereof - A non-differential dry pipe valve and fire suppression system are provided. The fire suppression system includes at least one inlet pipe, at least one outlet pipe, and a first valve assembly. The inlet pipe is at least partially filled with a fluid substance, wherein the fluid substance creates a first pressure in the inlet pipe. The outlet pipe is in fluid communication with the inlet pipe and contains a gaseous fluid, wherein the gaseous fluid creates a second pressure in the outlet pipe. The first valve assembly is in fluid communication between the inlet pipe and the outlet pipe, wherein the fluid substance enters the outlet pipe through the valve when the second pressure is altered to a predetermined pressure. | 10-20-2011 |
| 20120031630 | DRY PIPE SPRINKLER SYSTEM - A dry pipe sprinkler system comprises at least one sprinkler head ( | 02-09-2012 |
| 20120055686 | CONDENSATE COLLECTOR ARRANGEMENT WITH ANTI-TRIP ARRANGEMENT FOR DRY PIPE SPRINKLER SYSTEM - A condensate collector arrangement for a dry pipe sprinkler system comprises a collection chamber and an upstream valve and a downstream valve with an anti-trip arrangement for preventing the upstream valve and the downstream valve to be open at the same time and preferably includes an arrangement to indicate the presence of condensate and a lock for the anti-trip arrangement and an alarm which may be selectively deactivated. | 03-08-2012 |
| 20120132444 | Dry Sprinkler head - A dry sprinkler head which comprises a fail safe seat, and is fully adjustable. | 05-31-2012 |
| 20130168109 | PACKAGED INERTING SYSTEM FOR FIRE PROTECTION SPRINKLER SYSTEM AND METHOD OF INERTING A FIRE PROTECTION SPRINKLER SYSTEM - A fire protection sprinkler system inerting apparatus and method includes selectively connecting an inert gas source and a gas vent to the fire protection sprinkler system with a valve system and controlling the valve system. The valve system is controlled to selectively connect the inert gas source with the sprinkler system to add inert gas to the sprinkler system to increase the proportion of inert gas in the gas mixture within the sprinkler system and to operate the gas vent to discharge a portion of the gas mixture from the sprinkler system. | 07-04-2013 |
| 20130199803 | FLEXIBLE DRY SPRINKLERS - A dry sprinkler is provided having a flexible tube section having openings at opposite ends of the flexible tube section. The sprinkler includes a supply line connection at one end of the tube section, the supply line connection having an opening to receive fluid from the supply line. The sprinkler has a first seal sealed with the supply line connection to prevent fluid from the supply from entering the tube section. A sprinkler head is coupled to the tube section at another end of the tube section opposite the supply line connection, the sprinkler head having a deflector, a second seal sealing an output orifice of the sprinkler head, and a thermally responsive element arranged to maintain the second seal sealed. A fluid is contained in the tube between the first seal and the second seal, wherein the fluid is not susceptible to freezing. The thermally responsive element is constructed to release the second seal in response to an elevated temperature condition, to permit the release of the fluid in the tube and release the first seal to move toward the sprinkler head. | 08-08-2013 |
| 20130306333 | DRY PIPE VALVE & SYSTEM - A differential control valve and method of operation as a residential dry pipe fluid control valve which provides for a high liquid to gas trip ratio. The valve includes a housing having an interior surface defining an internal chamber with a central axis. The valve further includes a first port; a second port and a third port, each in communication with the internal chamber. A first valve seat is disposed along the interior surface of the housing circumscribed about the central axis and a second valve seat is circumscribed about the first valve seat. A sealing member defines a sealed position and an open position with respect to the valve seats. A spring member biases the seal member toward the open position and is disposed between the sealing member and the interior of the housing. | 11-21-2013 |
| 20130319696 | FLEXIBLE DRY SPRINKLERS - A flexible dry sprinkler includes a flexible tube having an inlet attached to a first end, the inlet defining an inlet orifice operatively sealed by an inlet seal assembly. An outlet is attached to the second end of the flexible tube, and defines an outlet orifice operatively sealed by an outlet seal assembly. A flexible linkage extends from the inlet to the outlet through the flexible tube, and is constructed to operatively release the inlet seal assembly responsive to axial translation of the flexible linkage from a first position to a second position. The flexible linkage is supported by the outlet seal assembly in the first position and wherein the flexible linkage is constructed to axially translate toward the outlet when the outlet seal assembly is released. | 12-05-2013 |
| 20140096981 | DRY SPRINKLERS WITH MULTIPLE COUPLING ARRANGEMENTS - A dry sprinkler for a fire protection system having multiple alternative coupling arrangements for connection to the fluid supply piping of the system. | 04-10-2014 |
| 20140102729 | DRY SPRINKLER ASSEMBLIES - A dry sprinkler for a fire protection system having a configuration with one or more coupling arrangements for connection to a fluid supply piping of the system. The dry sprinkler structure further includes an inner surface and inner assembly to provide a preferred discharge performance. The dry sprinkler provides for a flow rate from the outlet of the sprinkler in accordance with the start pressure at the inlet of the sprinkler and the rated discharge coefficient, K factor, ranging between 16.8 GPM/PSI½ and 33.6 GPM/PSI½ | 04-17-2014 |
| 20140102730 | Dry Sprinkler Assembly - A dry sprinkler assembly includes a housing, a sprinkler head assembly with a sprinkler head and a trigger assembly, and an actuator assembly. The actuator assembly has a sealing subassembly for sealing the inlet port of the housing and is operatively coupled to the trigger assembly such that the sealing subassembly releases the sealing of the inlet port in response to the trigger assembly releasing its closure at the outlet opening. The sealing subassembly moves in a linear path substantially parallel with the central longitudinal axis of the housing when releasing the sealing of the inlet port wherein the flow of fire suppressant through the inlet port and into the fluid flow passage is substantially unimpeded. | 04-17-2014 |
| 20140332240 | Corrosion Monitoring In A Fire Sprinkler System - A fire sprinkler system according to one aspect of the present disclosure includes a pipe having a first pipe portion and a second pipe portion. The first pipe portion includes a wall having a first wall thickness, and the second pipe portion includes a wall having a second wall thickness that is greater than the first wall thickness. The fire sprinkler system further includes structure coupled to the pipe and defining a sealed chamber between the structure and at least the first pipe portion, and a sensor for sensing a pressure in the sealed chamber. Example corrosion monitoring devices and methods for monitoring corrosion in pipe systems, including fire sprinkler systems, are also disclosed. | 11-13-2014 |
| 20150060091 | FLEXIBLE DRY SPRINKLERS - A flexible dry sprinkler includes a flexible tube having an inlet attached to a first end, the inlet defining an inlet orifice operatively sealed by an inlet seal assembly. An outlet is attached to the second end of the flexible tube, and defines an outlet orifice operatively sealed by an outlet seal assembly. A flexible linkage extends from the inlet to the outlet through the flexible tube, and is constructed to operatively release the inlet seal assembly responsive to axial translation of the flexible linkage from a first position to a second position. The flexible linkage is supported by the outlet seal assembly in the first position and wherein the flexible linkage is constructed to axially translate toward the outlet when the outlet seal assembly is released. | 03-05-2015 |
| 20150075821 | DRY SPRINKLER - A dry sprinkler is provided that includes a conduit with a fluid inlet and a fluid outlet, a valve positioned near the fluid inlet and a fire sprinkler head that is positioned near the fluid outlet. The fire sprinkler head is operably connected to the valve by a tie. When the fire sprinkler head reacts to an elevated temperature condition, the tie is engaged and is operable to open the valve. In a normal state, before the fire sprinkler head reacts, the tie can be unbiased toward the fire sprinkler head. The tie can also be non-rigid and/or in a non-compressed state within the conduit. The conduit of the dry sprinkler can be flexible. | 03-19-2015 |
| 20150290483 | Corrosion Monitoring In A Fire Sprinkler System - A fire sprinkler system according to one aspect of the present disclosure includes a pipe having a first pipe portion and a second pipe portion. The first pipe portion includes a wall having a first wall thickness, and the second pipe portion includes a wall having a second wall thickness that is greater than the first wall thickness. The fire sprinkler system further includes structure coupled to the pipe and defining a sealed chamber between the structure and at least the first pipe portion, and a sensor for sensing a pressure in the sealed chamber. Example corrosion monitoring devices and methods for monitoring corrosion in pipe systems, including fire sprinkler systems, are also disclosed. | 10-15-2015 |
| 20150297928 | SYSTEM, IN PARTICULAR, FIRE-FIGHTING SYSTEM WITH VALVES - The system comprises a main network situated downstream from a check valve that supplies the sensors, for example, in the form of sprinklers. This main network is subdivided into secondary networks, each secondary network being isolated from the main network by a valve that enables water to be prevented from entering the portions of the network in which it is not needed. The valve is capable not only of compensating for losses in pressure in the network but also for opening itself completely when a fire is detected. | 10-22-2015 |
| 20160001112 | FIREFIGHTING INSTALLATION INCLUDING A NETWORK OF VACUUM SPRINKLERS WHICH CAN BE TRIPPED BY AN ACTUATOR COMPRISING A PISTON AND BEING CONTROLLED BY A MASTER ACTUATOR - A firefighting installation includes a network of vacuum sprinklers. The installation incorporates a trip device that triggers the application of water to the network of sprinklers. The trip device includes: a master actuator sensitive to the pressure present in the sprinkler network and capable of moving a yoke from a first to a second position; a lock for locking a member of the actuator in position; and a transmission member transmitting between the yoke and the locking means. The actuator includes a piston able to move in a cavity of the body, and has an external portion extending outside of the cavity and being provided with a ring whereon the lock means is intended to act. | 01-07-2016 |
| 20160008642 | SPRINKLER COMPRISING A MEMBER HELD BY A FUSIBLE MEMBER AND EJECTION MEANS ACTING IN A PULLING SENSE ON THE MEMBER | 01-14-2016 |
| 20160008643 | FIREFIGHTING INSTALLATION INCLUDING A NETWORK OF VACUUM SPRINKLERS THAT CAN BE TRIPPED BY AN ACTUATOR OPERATED BY A MEMBRANE-MASTER ACTUATOR | 01-14-2016 |
| 20160008644 | Fire Protection Systems Having Reduced Corrosion | 01-14-2016 |
| 20160175630 | DRY SPRINKLER | 06-23-2016 |
| 20160250507 | FLEXIBLE DRY SPRINKLER | 09-01-2016 |
| 20190143161 | FIRE PROTECTION SYSTEMS HAVING REDUCED CORROSION | 05-16-2019 |
